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All results from a given calculation for H2COO (Dioxymethyl radical)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.269089
Energy at 298.15K-189.271693
HF Energy-188.619102
Nuclear repulsion energy71.034859
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3362 3172 2.88      
2 A' 3181 3001 16.67      
3 A' 1482 1398 5.10      
4 A' 1303 1230 10.58      
5 A' 1214 1146 313.79      
6 A' 1077 1016 689.59      
7 A' 558 527 11.92      
8 A" 825 778 35.28      
9 A" 690 651 22.64      

Unscaled Zero Point Vibrational Energy (zpe) 6846.2 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 6458.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/6-311+G(3df,2p)
ABC
2.80569 0.42314 0.36769

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.445 0.000
C2 1.061 -0.273 0.000
H3 0.951 -1.348 0.000
H4 1.973 0.296 0.000
O5 -1.161 -0.108 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28072.02921.97901.2857
C21.28071.08041.07592.2276
H32.02921.08041.93652.4488
H41.97901.07591.93653.1602
O51.28572.22762.44883.1602

picture of Dioxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 118.256 O1 C2 H4 113.943
C2 O1 O5 120.454 H3 C2 H4 127.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability